build(deps): bump Microsoft.Extensions.Configuration and Microsoft.Ex…

…tensions.Configuration.Json

Bumps [Microsoft.Extensions.Configuration](https://github.com/dotnet/runtime) and [Microsoft.Extensions.Configuration.Json](https://github.com/dotnet/runtime). These dependencies needed to be updated together.

Updates `Microsoft.Extensions.Configuration` from 8.0.0 to 9.0.0
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v8.0.0...v9.0.0)

Updates `Microsoft.Extensions.Configuration.Json` from 8.0.0 to 9.0.0
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v8.0.0...v9.0.0)

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Configuration
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: Microsoft.Extensions.Configuration.Json
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

src/Fluss.PostgreSQL.IntegrationTest/Fluss.PostgreSQL.IntegrationTest.csproj

@@ -9,9 +9,9 @@
 
     <ItemGroup>
         <PackageReference Include="coverlet.collector" Version="6.0.2"/>
-        <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0"/>
+        <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.0"/>
         <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="8.0.0"/>
-        <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0"/>
+        <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="9.0.0"/>
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0"/>
         <PackageReference Include="Npgsql" Version="8.0.4"/>
         <PackageReference Include="xunit" Version="2.9.2"/>